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Finding the Fourth Proportional to 57,495.73, 86,239.99 and 21,465.16

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Solution

The fourth proportional to 57,495.73, 86,239.99 and 21,465.16 is: 32,196.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,495.73 : 86,239.99 = 21,465.16 : x
  2. Step 2: Convert to fraction form
    57,495.73/86,239.99 = 21,465.16/x
  3. Step 3: Cross multiply
    57,495.73x = 86,239.99 × 21,465.16
  4. Step 4: Simplify right side
    57,495.73x = 1,851,155,183.75
  5. Step 5: Solve for x
    x = 1,851,155,183.75/57,495.73
  6. Step 6: Final answer
    x = 32,196.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.